24小时热门版块排行榜    

查看: 820  |  回复: 0

emanlee

木虫 (小有名气)

[求助] 从两个不同fasta文件中寻找不重复的序列

题目:从两个不同fasta文件中寻找不重复的序列

第一个fasta文件aaa.fa中有40000条碱基序列或者氨基酸序列:
>gi|118600994|ref|NM_001079530.1| Homo sapiens cripto, FRL-1, cryptic family 1B (CFC1B), mRNA
ATGCCAAATACAGCCATGAAGAAAAAGGTGCTGCTGATGGGGAAGAGCGGGTCGGGGAAGACCAGCATGAGGTCGATAATCTT
>gi|57863286|ref|NM_006570.4| Homo sapiens Ras-related GTP binding A (RRAGA), mRNA
ACGCTCTACAAAGCCTGGTCCAGCATCGTCTACCAGCTGATTCCCAACGTTCAGCAGCTGGAGATGAACCTCAGGAATTTTG
>gi|254587897|ref|NM_178495.5| Homo sapiens inositol 1,4,5-trisphosphate receptor
CGCCAATTACATTGCTCGCGACACCCGGCGCCTGGGGGCCACCATTGACGTGGAACACTCCCACGTCCGATTCCTAGGGAACC
>gi|191252813|ref|NM_001128635.1| Homo sapiens RIMS binding protein 3B (RIMBP3B), mRNA
TGGTGCTGAACCTGTGGGACTGTGGCGGTCAGGACACCTTCATGGAAAATTACTTCACCAGCCAGCGAGACAATATCTTCCGTA
>gi|61656209|ref|NM_001013355.1| Homo sapiens olfactory receptor, family 2, subfamily G, member 6 (OR2G6), mRNA
ACGTGGAAGTTTTGATTTACGTGTTTGACGTGGAGAGCCGCGAACTGGAAAAGGACATGCATTATTACCAGTCGTGTCTGGAGG
第二个fasta文件bbb.fa中有40000条碱基序列或者氨基酸序列:
>gi|83267870|ref|NM_080431.4| Homo sapiens actin-related protein T2 (ACTRT2), mRNA
CCATCCTCCAGAACTCTCCTGACGCCAAAATCTTCTGCCTGGTGCACAAAATGGATCTGGTTCAGGAGGATCAGCGTGACCTGA
>gi|53828675|ref|NM_001001923.1| Homo sapiens olfactory receptor, family 5, subfamily C, member 1 (OR5C1), mRNA
TTTTTAAAGAGCGAGAGGAAGACCTGAGGCGTCTGTCTCGCCCGCTGGAGTGTGCTTGTTTTCGAACGTCCATCTGGGATGAG
>gi|52627150|ref|NM_001005276.1| Homo sapiens olfactory receptor, family 2, subfamily AE, member 1 (OR2AE1), mRNA
TTTTTAAAGAGCGAGAGGAAGACCTGAGGCGTCTGTCTCGCCCGCTGGAGTGTGCTTGTTTTCGAACGTCCATCTGGGATGAG
>gi|61656211|ref|NM_001013357.1| Homo sapiens olfactory receptor, family 8, subfamily U, member 9 (OR8U9), mRNA
ACGCTCTACAAAGCCTGGTCCAGCATCGTCTACCAGCTGATTCCCAACGTTCAGCAGCTGGAGATGAACCTCAGGAATTTTG
>gi|51871366|ref|NM_001004124.1| Homo sapiens olfactory receptor, family 4, subfamily P, member 4 (OR4P4), mRNA
ATGCCAAATACAGCCATGAAGAAAAAGGTGCTGCTGATGGGGAAGAGCGGGTCGGGGAAGACCAGCATGAGGTCGATAATCTT

我们想从第二个文件bbb.fa中找出与aaa.fa中的序列overlapping的序列(overlap-ratio<0.8),请问如何使用blast比对?
是否有现成的perl或者python,或者C代码可以直接使用?
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

智能机器人

Robot (super robot)

我们都爱小木虫

相关版块跳转 我要订阅楼主 emanlee 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[找工作] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +3 gy1nBQXYQJqL 2026-08-29 7/350 2026-08-30 06:43 by ZPa0EcMwuECS
[硕博家园] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +3 gy1nBQXYQJqL 2026-08-29 6/300 2026-08-30 06:22 by ZPa0EcMwuECS
[找工作] 售SCI文章,我:8O5.5.1.O.54,科目齐全,可+急 +4 ASdOkHsho7FD 2026-08-28 8/400 2026-08-30 06:13 by ZPa0EcMwuECS
[教师之家] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +5 ASdOkHsho7FD 2026-08-28 7/350 2026-08-30 06:10 by ZPa0EcMwuECS
[硕博家园] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +3 G6APbkg8SA6w 2026-08-29 3/150 2026-08-30 02:18 by ZPa0EcMwuECS
[博后之家] 售SCI文章,我:8O5.5.1.O.54,科目齐全,可+急 +5 gy1nBQXYQJqL 2026-08-29 6/300 2026-08-30 01:47 by ZPa0EcMwuECS
[考博] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +3 gy1nBQXYQJqL 2026-08-29 4/200 2026-08-30 01:34 by ZPa0EcMwuECS
[基金申请] 国社科申报系统有变化 +3 kynobel 2026-08-23 3/150 2026-08-29 21:57 by 余韵清
[基金申请] 国自然面上复盘~欢迎讨论 (金币+15) +15 晴天加油 2026-08-26 16/800 2026-08-29 18:28 by symmetry
[基金申请] 我就是申请一个面上项目而已,这评审意见是按照杰青的条件评的吧? +6 gouxfjh 2026-08-28 9/450 2026-08-29 09:59 by jklily
[基金申请] 系统查不到 +11 董八千 2026-08-26 11/550 2026-08-28 18:06 by Leogzhya
[基金申请] 怎么查啊 +6 huang1991js 2026-08-26 6/300 2026-08-28 08:42 by winsaint
[基金申请] 哪位高人中了,把查询到的截图贴出来让我看看,让我长长见识 +5 yuleib84 2026-08-26 6/300 2026-08-28 00:02 by yudaoqian88
[基金申请] 面上合作单位盖章 +5 ssyjh 2026-08-27 5/250 2026-08-27 20:50 by gdfollow
[基金申请] 申请删除本帖 +6 lyz123lyz 2026-08-27 7/350 2026-08-27 17:31 by 宁静致远sy
[文学芳草园] 梦想 +3 myrtle 2026-08-26 3/150 2026-08-27 10:01 by angelyueyi
[基金申请] 2026年8月25日国自然放榜前突然收到列入评审专家邮件,有关系吗? +25 木水思豆 2026-08-25 28/1400 2026-08-26 14:53 by draco1987
[基金申请] 国合里面能看到了 +7 一怀馨秋 2026-08-26 7/350 2026-08-26 11:23 by zhaosm1982
[基金申请] 系统进不去 +4 yanglien 2026-08-26 5/250 2026-08-26 11:10 by wenfengw83
[基金申请] 如果此刻你正在为国基感到焦虑,不妨来听听这首《基金之外》 +8 scalable 2026-08-24 8/400 2026-08-25 12:52 by jnhyjjm
信息提示
请填处理意见